Doing some gas calculations and I'm a little confused as to why the answer in the textbook is 150,000Pa when my answer is completely different.
The gas in a cylinder is at a pressure of 120,000Pa and occupies a volume of 18cm^3. The cylinder is compressed to a volume of 14cm^3. The temperature is kept constant. Calculate the new pressure.
I use the formula P1V1=P2V2
120,000 x 18 = p2 x 14
2160000 = p2 x 14
2160000/14 = p2
p2 = 154285.714285
What do I do here to get the answer 150,000Pa? Or is my calculation wrong? Do I need to round or something? So confused. This is probably stupid question. Lol. Somebody help please
Much appreciated
The answer in the textbook is P2 = 154000 = 150000 Pa??????????